63368   Zip Code O'Fallon St. Charles MO United States

City O'Fallon
County St. Charles
State Missouri
Latitude 38.7516
Longitude -90.72895
Population 46,966
Density 2897.15 people per square mile
Time Zone America/Chicago
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $124,297
Median individual: $57,701

Race

Mode: 82.6% White

Gender

 51.5% female 

Rent

  $1482 / month  

Median house value: $351,182.0

Age

Median: 38.0 years old

Education

With at least college degree: 51.0%
With STEM degree: 41.6%

Marital Status

 57.4% married 

Never married: 27.7%

Labor Force Participation

 75.3% working 

Unemployed: 2.1%

Average Family Size

 3.15 people 

Commute Time

 24.7 minutes 

Health Care

 3.8% uninsured 

Poverty

 3.8%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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